The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2025
Filed:
Jul. 20, 2023
Lg Innotek Co., Ltd., Seoul, KR;
Yu Ri Park, Seoul, KR;
Yong Il Kwon, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
A wireless power transmitter of transmitting power to a wireless power receiver, including a controller configured to determine whether a foreign object is present in a charging area of the wireless power transmitter; and a transmission part configured to transmit a wireless power according to whether the foreign object is present, wherein the controller receives a signal including an FOD status packet from the wireless power receiver, determines whether the foreign object is present in a charging area of the wireless power transmitter based on the FOD status packet; wherein the controller is set to operate in a first power transfer mode when it is determined that the foreign object is present in the charging area, or to operate in a second power transfer mode when it is determined that the foreign object is not present in the charging area; wherein the controller receives a reception power packet including information on the reception power intensity from the wireless power receiver, determines the reception power intensity of the wireless power receiver based on the information on the reception power intensity, measures or calculates a power loss based on a difference between the determined reception power intensity and the transmission power intensity of the wireless power transmitter, and corrects any one of a transmission power, a reception power, and a loss of power using the power loss; and wherein the controller determines whether the foreign object is present in the charging area of the wireless power transmitter while being operated in the second power transfer mode.